Update comment about the UNWIND_X86_64_MODE_STACK_IND encoding
bug in old clang's.

llvm-svn: 240070
diff --git a/lldb/source/Symbol/CompactUnwindInfo.cpp b/lldb/source/Symbol/CompactUnwindInfo.cpp
index 025c138..afef4e4 100644
--- a/lldb/source/Symbol/CompactUnwindInfo.cpp
+++ b/lldb/source/Symbol/CompactUnwindInfo.cpp
@@ -775,7 +775,8 @@
         case UNWIND_X86_64_MODE_STACK_IND:
         {
             // The clang in Xcode 6 is emitting incorrect compact unwind encodings for this
-            // style of unwind.  It was fixed in llvm r217020.
+            // style of unwind.  It was fixed in llvm r217020.  
+            // The clang in Xcode 7 has this fixed.
             return false;
         }
         break;